I agree with eazybee.
If what we read is true, (and who knows if it is), it seems a couple of months after the wedding, the RF, Prince Charles specifically, wanted Meghan to go and visit her father to try and resolve, or at least appear to resolve, all the issues that had sprung up between her and her family. Instead she wrote this controversial letter, which he subsequently showed to the press.
Why did she and Harry not go to visit him? It could have been done very quietly and discreetly if that’s what they wanted, or they could have made a point of letting the press know. The details of how the actual visit went could have been kept quiet, but the fact that they were being shown to try and hold out an olive branch would have gone massively in their favour.